Cisco AI Defense to Integrate Anthropic’s Claude Mythos for Red Teaming

US networking giant Cisco announced on November 9, 2026, that its enterprise AI security solution, "AI Defense," will integrate Anthropic’s Claude Mythos model to strengthen its adaptive AI red teaming framework. This marks one of the first instances where frontier large language model reasoning is directly embedded into enterprise security testing workflows.

Cisco stated that while standard red teaming detects common vulnerabilities like prompt injection and jailbreaks, it often misses unique risks arising from AI agents connected to complex toolchains in specific organizational environments. The new adaptive red teaming allows users to define testing criteria in natural language; the system analyzes the target and generates tailored attack scenarios. Claude Mythos contributes by generating attack ideas and payloads, but operates under strict controls: it targets only customer-authorized systems, has no open interface for free prompting, and all actions are audited and attributed to a named operator.

Michael Moore, Cybersecurity Lead at Anthropic, noted that enterprises want to thoroughly test their AI agents before deployment, and integrating Claude Mythos helps security teams use advanced reasoning to plan tests and generate attack ideas. Cisco emphasized that this deployment reflects a broader trend of making frontier security capabilities available to defenders under verified, controlled access.

Standard and adaptive red teaming are currently available in AI Defense, but the integration with Claude Mythos is not yet generally accessible. Cisco said the feature is "coming soon" for select enterprises, with broader availability planned on a when-and-if-available basis.